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Novel wide-coverage waterproof coiled material substitutable for polyurea waterproof paint

A waterproof coating and waterproof membrane technology, which is applied in the field of chlorinated polyethylene waterproof membrane and its preparation, can solve the problems of polyurea waterproof layer damage, impact on waterproof effect, high engineering cost, etc., and achieve low construction cost and guaranteed performance quality , The effect of construction quality assurance

Inactive Publication Date: 2011-08-17
RAILWAY ENG RES INST CHINA ACADEMY OF RAILWAY SCI +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

A large number of spraying polyurea waterproofing methods are used, which effectively solves the requirement of continuous waterproofing under the base plate, but in the process of application, some problems are also found: ①High engineering cost
②Many influencing factors
③Polyurea spraying construction requires one-time complete coverage of the bridge deck, and the follow-up process will inevitably cause certain damage to the constructed polyurea waterproof layer, affecting the waterproof effect

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] A new type of wide-width waterproof membrane that can replace sprayed polyurea waterproof coatings is made of the following raw materials in parts by weight: 100 parts of chlorinated polyethylene with a chlorine content of 35%, 10 parts of activated calcium carbonate, o-phthalic 20 parts of dioctyl dicarboxylic acid, 0.6 part of phenolic antioxidant, 4 parts of heat stabilizer, 0.5 part of stearic acid, 0.5 part of ultraviolet absorber (UV-327); Described phenolic antioxidant is by weight ratio It is made of 35% phenolic primary antioxidant 1076 and 65% auxiliary antioxidant DSTDP; the heat stabilizer is made of 60% tribasic lead sulfate and 40% composite heat stabilizer;

[0023] A method for preparing a wide-width novel waterproof product that can replace spraying polyurea waterproof coating comprises the following steps: (1) batching: mixing various raw materials in proportion, and fully stirring them evenly at room temperature; (2) granulating: mixing The well-stirr...

Embodiment 2

[0025]A new type of wide-width waterproof membrane that can replace sprayed polyurea waterproof coating is made of the following raw materials in parts by weight: 100 parts of chlorinated polyethylene with a chlorine content of 35%, 10 parts of kaolin, phthalic acid 20 parts of dioctyl fat, 5 parts of epoxidized soybean oil, 3 parts of polyethylene wax, 0.6 part of phenolic antioxidant, 4 parts of heat stabilizer, 0.5 part of stearic acid, 0.5 part of ultraviolet absorber (UV-327); Described phenolic antioxidant is made by the secondary antioxidant DSTDP that is 35% phenolic main antioxidant 1076 and 65% by weight; Described thermal stabilizer is made of 60% tribasic lead sulfate and Made of 40% composite heat stabilizer;

[0026] A method for preparing a wide-width novel waterproof product that can replace spraying polyurea waterproof coating comprises the following steps: (1) batching: mixing various raw materials in proportion, and fully stirring them evenly at room tempera...

Embodiment 3

[0028] A new type of wide-width waterproof membrane that can replace sprayed polyurea waterproof coatings is made of the following raw materials in parts by weight: 100 parts of chlorinated polyethylene with a chlorine content of 35%, 10 parts of white carbon black, o-phthalic 15 parts of dioctyl dicarboxylate, 5 parts of epoxidized soybean oil, 4 parts of polyethylene wax, 0.6 parts of phenolic antioxidant, 4 parts of heat stabilizer, 0.5 part of stearic acid, 0.5 part of ultraviolet absorber (UV-327) part; described phenolic antioxidant is made by the auxiliary antioxidant DSTDP that is 35% phenolic primary antioxidant 1076 and 65% by weight; Described thermal stabilizer is made of 60% tribasic sulfuric acid Made of lead and 40% composite heat stabilizer;

[0029] A method for preparing a wide-width novel waterproof product that can replace spraying polyurea waterproof coating comprises the following steps: (1) batching: mixing various raw materials in proportion, and fully ...

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Abstract

The invention relates to a waterproof material, particularly a novel wide-coverage waterproof coiled material substitutable for polyurea waterproof paint and a preparation method thereof. The invention solves the problems of high construction and formularization cost and the like in the existing spray-coating polyurea waterproof paint. The wide-coverage waterproof coiled material substitutable for polyurea waterproof paint is prepared from chlorinated polyethylene, a filling reinforcer, a softening plasticizer, phenolic antioxidant, a thermal stabilizer, a light stabilizer and a lubricant. The preparation method comprises the following steps: mixing the raw materials, and stirring; granulating by sequentially treating the mixture with a plastic mixing mill, a compounding mill and a dicing machine; putting the granules into a single screw extruder, and forming in a die; and rolling by a tri-roller cooling calender to obtain the waterproof coiled material. The novel wide-coverage waterproof coiled material substitutable for polyurea waterproof paint has high softness, high percentage of elongation and high rebound elasticity in the rubber-type waterproof coiled material on the premise of maintaining high tensile strength in the plastic-type waterproof coiled material, and thus, exceeds the construction standard for spray-coating polyurea waterproof paint; and the novel wide-coverage waterproof coiled material substitutable for polyurea waterproof paint has the advantage of low production cost and has wide application prospects.

Description

technical field [0001] The invention relates to a novel wide-width waterproof coiled material which can replace spraying polyurea waterproof coating, in particular to a chlorinated polyethylene waterproof coiled material and a preparation method thereof. Background technique [0002] The construction industry in the 21st century has entered an era of rapid development, requiring beautiful and durable buildings, and building waterproof materials must also have the characteristics of light weight, high strength and long service life. At present, the concrete waterproof layer is an important technical means to improve the durability of building structures. There are many cases of bridge deck or roof water seepage and steel bar corrosion due to waterproof failure, which directly affects its service life. At present, the most widely used waterproof material on high-speed railway bridges is spraying polyurea waterproof coating, which is a kind of polyurea elastomer. This technolog...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08K13/02C08K3/30C08K3/26B29C47/92C08K3/34C08K3/36C08L23/28B29C48/92
Inventor 牛斌王保良胡所亭马林魏峰刘永建葛凯马美琴修磊王浩鲍新艳
Owner RAILWAY ENG RES INST CHINA ACADEMY OF RAILWAY SCI
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